diff options
Diffstat (limited to 'src/main.rs')
| -rw-r--r-- | src/main.rs | 196 |
1 files changed, 140 insertions, 56 deletions
diff --git a/src/main.rs b/src/main.rs index eccef92..59913c0 100644 --- a/src/main.rs +++ b/src/main.rs @@ -1,14 +1,11 @@ -extern crate sdl2; -extern crate sdl2_sys; - -mod state; -mod player; mod constants; mod gates; +mod player; +mod state; -use state::Positioned; -use state::Drawable; use state::Bullet; +use state::Drawable; +use state::Positioned; enum FResult { Win, @@ -26,7 +23,12 @@ struct Textures<'a> { const DURATION: u32 = 1_000_000_000u32 / 60; -fn frame<T: state::Enemy<U>, U: state::Bullet>(canvas: &mut sdl2::render::WindowCanvas, state: &mut state::State<T, U>, events: &mut sdl2::event::EventPollIterator, textures: &Textures) -> FResult { +fn frame<T: state::Enemy<U>, U: state::Bullet>( + canvas: &mut sdl2::render::WindowCanvas, + state: &mut state::State<T, U>, + events: &mut sdl2::event::EventPollIterator, + textures: &Textures, +) -> FResult { let mut new_bullets = Vec::new(); let count = state.count; for enemy in state.enemies.iter_mut() { @@ -42,12 +44,24 @@ fn frame<T: state::Enemy<U>, U: state::Bullet>(canvas: &mut sdl2::render::Window Err(_) => { return FResult::Exit; } - Ok(_) => { } + Ok(_) => {} } if count % state.player.fire_rate as u64 == 0 { - state.player_bullets.push(state::PBullet::new(state.player.x, 0., state.player.y, -3.5)); + state.player_bullets.push(state::PBullet::new( + state.player.x, + 0., + state.player.y, + -3.5, + )); } - if state.bullets.iter().any(|bullet| state.player.overlaps(bullet)) || new_bullets.iter().any(|bullet| state.player.overlaps(bullet)) { + if state + .bullets + .iter() + .any(|bullet| state.player.overlaps(bullet)) + || new_bullets + .iter() + .any(|bullet| state.player.overlaps(bullet)) + { return FResult::Loss; } for enemy in state.enemies.iter_mut() { @@ -58,13 +72,17 @@ fn frame<T: state::Enemy<U>, U: state::Bullet>(canvas: &mut sdl2::render::Window } } } - state.enemies.retain(|enemy| state::Enemy::health(enemy) > 0.); + state + .enemies + .retain(|enemy| state::Enemy::health(enemy) > 0.); if state.enemies.len() == 0 { return FResult::Win; } state.bullets.retain(|bullet| !U::outside(bullet)); state.bullets.append(&mut new_bullets); - state.player_bullets.retain(|bullet| !state::PBullet::outside(bullet)); + state + .player_bullets + .retain(|bullet| !state::PBullet::outside(bullet)); for bullet in state.player_bullets.iter() { bullet.draw(canvas, &textures.pbullet); } @@ -76,22 +94,32 @@ fn frame<T: state::Enemy<U>, U: state::Bullet>(canvas: &mut sdl2::render::Window bullet.draw(canvas, &textures.ebullet); } canvas.set_draw_color(sdl2::pixels::Color::RGB(255, 0, 0)); - canvas.draw_rect(sdl2::rect::Rect::new(0, 0, (state.enemies[0].health() * constants::X_DIM as f64).round() as u32, 20)).unwrap(); + canvas + .draw_rect(sdl2::rect::Rect::new( + 0, + 0, + (state.enemies[0].health() * constants::X_DIM as f64).round() as u32, + 20, + )) + .unwrap(); state.count += 1; FResult::Nothing } -/* Why tf do I not need a lifetime here? */ fn get_surface(bytes: &[u8]) -> sdl2::surface::Surface { (unsafe { - let rw = sdl2_sys::SDL_RWFromMem(bytes.as_ptr() as *mut std::os::raw::c_void, bytes.len() as i32); + let rw = sdl2_sys::SDL_RWFromMem( + bytes.as_ptr() as *mut std::os::raw::c_void, + bytes.len() as i32, + ); let raw = sdl2_sys::image::IMG_Load_RW(rw, 1); if (raw as *mut ()).is_null() { Err("Returned null") } else { Ok(sdl2::surface::Surface::from_ll(raw)) } - }).unwrap() + }) + .unwrap() } fn get_player_surface() -> sdl2::surface::Surface<'static> { @@ -110,10 +138,18 @@ fn get_pbullet_surface() -> sdl2::surface::Surface<'static> { get_surface(include_bytes!("assets/player_pepp.png")) } -fn generic_message(canvas: &mut sdl2::render::WindowCanvas, event_pump: &mut sdl2::EventPump, image: &[u8], okay: sdl2::keyboard::Keycode, error: sdl2::keyboard::Keycode) -> Result<(), ()> { +fn generic_message( + canvas: &mut sdl2::render::WindowCanvas, + event_pump: &mut sdl2::EventPump, + image: &[u8], + okay: sdl2::keyboard::Keycode, + error: sdl2::keyboard::Keycode, +) -> Result<(), ()> { let surface = get_surface(image); let texture_creator = canvas.texture_creator(); - let texture = texture_creator.create_texture_from_surface(surface).unwrap(); + let texture = texture_creator + .create_texture_from_surface(surface) + .unwrap(); let frame_duration = std::time::Duration::new(0, DURATION); loop { let start = std::time::Instant::now(); @@ -121,7 +157,10 @@ fn generic_message(canvas: &mut sdl2::render::WindowCanvas, event_pump: &mut sdl canvas.present(); for event in event_pump.poll_iter() { match event { - sdl2::event::Event::KeyDown { keycode: Some(keycode), .. } => { + sdl2::event::Event::KeyDown { + keycode: Some(keycode), + .. + } => { if keycode == okay { return Ok(()); } @@ -129,10 +168,10 @@ fn generic_message(canvas: &mut sdl2::render::WindowCanvas, event_pump: &mut sdl return Err(()); } } - sdl2::event::Event::Quit {..} => { + sdl2::event::Event::Quit { .. } => { return Err(()); } - _ => { } + _ => {} } } match frame_duration.checked_sub(start.elapsed()) { @@ -142,28 +181,59 @@ fn generic_message(canvas: &mut sdl2::render::WindowCanvas, event_pump: &mut sdl } } -fn introduction(canvas: &mut sdl2::render::WindowCanvas, event_pump: &mut sdl2::EventPump) -> Result<(), ()> { - return generic_message(canvas, event_pump, include_bytes!("assets/introduction.png"), sdl2::keyboard::Keycode::Return, sdl2::keyboard::Keycode::Escape); +fn introduction( + canvas: &mut sdl2::render::WindowCanvas, + event_pump: &mut sdl2::EventPump, +) -> Result<(), ()> { + return generic_message( + canvas, + event_pump, + include_bytes!("assets/introduction.png"), + sdl2::keyboard::Keycode::Return, + sdl2::keyboard::Keycode::Escape, + ); } -fn loss(canvas: &mut sdl2::render::WindowCanvas, event_pump: &mut sdl2::EventPump) -> Result<(), ()> { - return generic_message(canvas, event_pump, include_bytes!("assets/loss.png"), sdl2::keyboard::Keycode::R, sdl2::keyboard::Keycode::Escape); +fn loss( + canvas: &mut sdl2::render::WindowCanvas, + event_pump: &mut sdl2::EventPump, +) -> Result<(), ()> { + return generic_message( + canvas, + event_pump, + include_bytes!("assets/loss.png"), + sdl2::keyboard::Keycode::R, + sdl2::keyboard::Keycode::Escape, + ); } -fn victory(canvas: &mut sdl2::render::WindowCanvas, event_pump: &mut sdl2::EventPump) -> Result<(), ()> { - return generic_message(canvas, event_pump, include_bytes!("assets/victory.png"), sdl2::keyboard::Keycode::R, sdl2::keyboard::Keycode::Escape); +fn victory( + canvas: &mut sdl2::render::WindowCanvas, + event_pump: &mut sdl2::EventPump, +) -> Result<(), ()> { + return generic_message( + canvas, + event_pump, + include_bytes!("assets/victory.png"), + sdl2::keyboard::Keycode::R, + sdl2::keyboard::Keycode::Escape, + ); } fn main() { let sdl_context = sdl2::init().unwrap(); let video_subsystem = sdl_context.video().unwrap(); - let window = video_subsystem.window("rust-sdl2 demo", constants::X_DIM, constants::Y_DIM).position_centered().build().unwrap(); + let window = video_subsystem + .window("rust-sdl2 demo", constants::X_DIM, constants::Y_DIM) + .position_centered() + .build() + .unwrap(); let mut canvas = window.into_canvas().build().unwrap(); let mut event_pump = sdl_context.event_pump().unwrap(); - + match introduction(&mut canvas, &mut event_pump) { - Ok(_) => { } + Ok(_) => {} Err(_) => { return; } @@ -176,37 +246,51 @@ fn main() { let ebullet_surface = get_ebullet_surface(); let pbullet_surface = get_pbullet_surface(); let texture_creator = canvas.texture_creator(); - let player_texture = texture_creator.create_texture_from_surface(player_surface).unwrap(); - let enemy_texture = texture_creator.create_texture_from_surface(enemy_surface).unwrap(); - let ebullet_texture = texture_creator.create_texture_from_surface(ebullet_surface).unwrap(); - let pbullet_texture = texture_creator.create_texture_from_surface(pbullet_surface).unwrap(); - let surfaces = Textures { player: player_texture, enemy: enemy_texture, pbullet: pbullet_texture, ebullet: ebullet_texture }; + let player_texture = texture_creator + .create_texture_from_surface(player_surface) + .unwrap(); + let enemy_texture = texture_creator + .create_texture_from_surface(enemy_surface) + .unwrap(); + let ebullet_texture = texture_creator + .create_texture_from_surface(ebullet_surface) + .unwrap(); + let pbullet_texture = texture_creator + .create_texture_from_surface(pbullet_surface) + .unwrap(); + let surfaces = Textures { + player: player_texture, + enemy: enemy_texture, + pbullet: pbullet_texture, + ebullet: ebullet_texture, + }; let frame_duration = std::time::Duration::new(0, DURATION); - 'running: loop { + loop { let start = std::time::Instant::now(); canvas.set_draw_color(sdl2::pixels::Color::RGB(255, 255, 255)); canvas.clear(); - match frame(&mut canvas, &mut state, &mut event_pump.poll_iter(), &surfaces) { - FResult::Loss => { - match loss(&mut canvas, &mut event_pump) { - Ok(_) => { - break; - } - Err(_) => { - break 'retry; - } + match frame( + &mut canvas, + &mut state, + &mut event_pump.poll_iter(), + &surfaces, + ) { + FResult::Loss => match loss(&mut canvas, &mut event_pump) { + Ok(_) => { + break; } - } - FResult::Win => { - match victory(&mut canvas, &mut event_pump) { - Ok(_) => { - break; - } - Err(_) => { - break 'retry; - } + Err(_) => { + break 'retry; } - } + }, + FResult::Win => match victory(&mut canvas, &mut event_pump) { + Ok(_) => { + break; + } + Err(_) => { + break 'retry; + } + }, FResult::Exit => { break 'retry; } |